If you have difficult tyres to seat

Rim Material: 6069 Aluminium Alloy

Comfortable and non-intrusive

Wide handle and base

Weight: 390g for medium size

Hope Tech EVO GR4 Disc Brake - Rear - Left Lever - 2000mm - Black - Blue New Arrival If you have difficult tyresMaximum power, zero compromise. Engineered for gravity and E bike use, the one piece GR4 caliper features a stiffer one piece body, larger pistons (6% more power vs Tech 4 V4), and a slimmer profile for better frame compatibility. They are deliberately not compatible for vented rotors, to maximise caliper stiffness and performance. EVO Master Cylinder: The Master cylinder features a new cam mechanism to reduce free stroke while maintaining the feel